CN103454181B - Fabric fibre tow fault on-line measuring device - Google Patents
Fabric fibre tow fault on-line measuring device Download PDFInfo
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- CN103454181B CN103454181B CN201210168697.4A CN201210168697A CN103454181B CN 103454181 B CN103454181 B CN 103454181B CN 201210168697 A CN201210168697 A CN 201210168697A CN 103454181 B CN103454181 B CN 103454181B
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Abstract
The invention discloses fabric fibre tow fault on-line measuring device, it comprises constant speed identical tension wire drive feeder, spinning Network device, pressure gas blowning installation, gas-dynamic detecting unit and control module.Constant speed identical tension wire drive feeder comprises two groups of draw-off godets.Spinning Network device, between two groups of draw-off godets, moves along a draw-off godet, spinning Network device and another draw-off godet direction to make fabric fibre tow constant speed identical tension.Pressure gas blowning installation is used for blowing to spinning Network device.The gas-dynamic data that gas-dynamic detecting unit is blown to spinning Network device for detecting pressure gas blowning installation.Control module connects gas-dynamic detecting unit, for obtaining gas-dynamic data, according to gas-dynamic Data Detection fault.When the fault such as spillage or column cap silk appears in tow, the bar of tow is dry can change thereupon, when bar does abnormal tow by Network device, can affect the gas-dynamic data of air blowing, therefore by detecting gas-dynamic Data Detection fault.
Description
Technical field
The present invention relates to a kind of fabric fibre tow fault on-line measuring device.
Background technology
Existing fabric fibre tow fault on-line measuring device, it generally adopts photoelectric technology to carry out on-line checkingi, 02136058.8,201110052541.3,9719189.9,201110065004.4,200610097595.2 etc. of the open or bulletin of such as Chinese patent database, fabric photographic data is obtained by CCD camera head, contrast photographic data and fabric preset data by controller again, detect fault by contrast.It has following deficiency: the cost of pick-up unit is high, and the degree of accuracy of detection is low.
Summary of the invention
The invention provides fabric fibre tow fault on-line measuring device, which overcome the deficiency existing for fabric fibre tow fault on-line measuring device in background technology.
The technical scheme adopted that the present invention solves its technical matters is:
Fabric fibre tow fault on-line measuring device, it comprises:
One constant speed identical tension wire drive feeder, it comprises two groups of draw-off godets (10);
One spinning Network device (20), it is positioned between two groups of draw-off godets (10), to make fabric fibre tow constant speed identical tension along a draw-off godet (10), spinning Network device (20) and the motion of another draw-off godet (10) direction;
One pressure gas blowning installation (30), it is for blowing to spinning Network device (20);
One gas-dynamic detecting unit (40), the gas-dynamic data that it is blown to spinning Network device (20) for detecting pressure gas blowning installation (30); And
One control module (50), it connects gas-dynamic detecting unit (40), for obtaining gas-dynamic data, according to gas-dynamic Data Detection fault.
Among one preferred embodiment: described pressure gas blowning installation (30) comprises a pressure gas supply source (31), a gas pressure regulating valve (32) and a switch valve (33), described pressure gas supply source (31) connects gas pressure regulating valve (32), described gas pressure regulating valve (32) connecting valve valve (33), described switch valve (33) coordinates spinning Network device (20).
Among one preferred embodiment: described gas-dynamic detecting unit (40) is located between pressure gas blowning installation (30) and spinning Network device (20), and which comprises at least gas flow sensor (41).
Among one preferred embodiment: described gas-dynamic detecting unit (40) also comprises gas pressure sensor (42).
Among one preferred embodiment: described control module (50) is also connected with an alarm output circuit (55), and it is for sending warning when detecting fault.
Among one preferred embodiment: described control module (50) comprises a controller (51) and a gain amplifier (52), described controller (51) connects gain amplifier (52), and described gain amplifier (52) connects gas-dynamic detecting unit (40).
Among one preferred embodiment: described control module (50) also comprises a digital to analog converter (53), described digital to analog converter (53) is connected between controller (51) and gain amplifier (52).
Among one preferred embodiment: described control module (50) has a transmission interface (54), this transmission interface (54) for obtain host computer technological parameter, detect fault result for transmitting, described control module (50) is according to technical arrangement plan gain amplifier (52) enlargement factor.
The technical program is compared with background technology, and its tool has the following advantages:
1, when the fault such as spillage or column cap silk appears in tow, the bar of tow is dry can change thereupon, when bar does abnormal tow by Network device, the gas-dynamic data of air blowing can be affected, therefore by detecting gas-dynamic Data Detection fault, adopt this kind of mode to detect fault, installation cost is low, and accuracy in detection is high.
2, gas-dynamic detecting unit also comprises gas pressure sensor, and control module detects fault by the dynamic data of gaseous tension and gas flow, and reduce interference, accuracy rate is high.
3. control module comprises controller and gain amplifier, first amplifying signal, then contrasts detection, and accuracy rate is high.
4, control module is according to technical arrangement plan gain amplifier enlargement factor, makes pick-up unit automatically can detect different fiber number tow.
5, control module also comprises digital to analog converter, and adopt numeral contrast, easy to detect, accuracy rate is high.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 depicts the schematic diagram of pick-up unit.
Fig. 2 depicts the circuit diagram of gain amplifier.
Fig. 3 depicts the tables of data that detect of a pick-up unit when detecting that tow is thicker and causing fault.
Fig. 4 depicts a pick-up unit the tables of data detected that tow attenuates when causing fault being detected.
Embodiment
Please refer to Fig. 1, fabric fibre tow fault on-line measuring device, it comprises a constant speed identical tension wire drive feeder, spinning Network device 20, pressure gas blowning installation 30, gas-dynamic detecting unit 40 and a control module 50.
Described constant speed identical tension wire drive feeder, it comprises two groups of draw-off godets 10.Described spinning Network device 20, it is applicable to fabric fibre tow fineness, and between two groups of draw-off godets 10.Fabric fibre tow moves along a draw-off godet 10, spinning Network device 20 and another draw-off godet 10 direction with constant speed identical tension.Among the present embodiment, described draw-off godet, Network device are prior art, are not further described at this.
Described pressure gas blowning installation 30, it is for blowing to spinning Network device 20.Described pressure gas blowning installation 30 comprises pressure gas supply source 31, gas pressure regulating valve 32 and a switch valve 33, described pressure gas supply source 31 connects gas pressure regulating valve 32, described gas pressure regulating valve 32 connecting valve valve 33, described switch valve 33 coordinates spinning Network device 20.Wherein, described gas pressure regulating valve 32 can adopt mechanical type gas pressure regulating valve, and for controlling gaseous tension, described switch valve 33 such as adopts solenoid valve, opens switch valve 33 and pressure gas can be made to blow to Network device with constant pressure.Described pressure gas blowning installation 30 1 homestats, are determined by pressure regulator valve and end gas consumption, and the pressure of system can have of short duration fluctuation with gas consumption fluctuation, then after mobile equilibrium, recovers set pressure.
Described gas-dynamic detecting unit 40, the pressure gas dynamic data that it is blown to spinning Network device 20 for detecting pressure gas blowning installation 30, this pressure gas dynamic data is such as gas flow dynamic data or gaseous tension dynamic data or gas flow and gas Pressure behaviour data, be described for gas flow, gaseous tension dynamic data below, collection gas flow, gaseous tension dynamic data judge, effectively can reduce interference, accuracy rate is high.Described gas-dynamic detecting unit 40 is located between pressure gas blowning installation 30 and spinning Network device 20, and comprising gas flow sensor 41 and gas pressure sensor 42, described gas flow sensor 41 and gas pressure sensor 42 can directly commercially be bought.
Described control module 50, it connects gas-dynamic detecting unit 40, for obtaining gas-dynamic data, according to gas-dynamic Data Detection fault.Described control module 50 comprises controller 51, gain amplifier 52 and a digital to analog converter 53, described controller 51 connects gain amplifier 52, described gain amplifier 52 connects gas-dynamic detecting unit 40, and described digital to analog converter 53 is connected between controller 51 and gain amplifier 52.Described dynamic data amplifies through gain amplifier 52 signal, and then simulating signal is transferred to digital signal, and controller 51 is according to digital signal detection fault.
Please refer to Fig. 3 and Fig. 4, they are the schematic diagram of fault and flow, pressure, and transverse axis is the time, and the longitudinal axis is amplitude.
Measuring mechanism principle: detected tow passes through Network device with constant speed identical tension, change can be caused to the gas flow of ejection Network device when detected tow occurs that bar does exception, when compressed air pressure is constant, gas flow is with by the dry synchronous change of the tow strip of Network device, detects fault according to this change.Specifically, describe as follows:
When have because of spillage etc. cause containing fault tow (such as yarn) by Network device time, because tow is thicker, the area sheltered from by tow of Network device gas outlet is increased, and therefore gas flow will instantaneous reduction.The axis of fault at tow can be calculated according to the duration of flow rate fluctuation and the linear velocity of constant speed identical tension wire drive feeder, and, the length of fault in tow; The diameter variable quantity of tow can be calculated according to the gas flow amplitude size of flow sensor 41 detection.Otherwise when denier count as received diminishes (attenuating), gas flow will increase instantaneously.
Because gas pressure regulating valve is between a dynamic pressure balance period, therefore the fluctuation that pressure also can be slight when flow suddenlys change, drops to normally if the pressure signal then detected first rises afterwards, represents that tow is thicker, rise to if first decline normal again, represent that tow attenuates.Also fault characteristic parameter can be judged according to pressure detection.And if flow increases, pressure also increases, or flow reduces pressure and also reduces, be then represented as the interference of extraneous air feed fluctuation to system, by software algorithm filtering.
Among the present embodiment, described control module 50 has a transmission interface 54, and this transmission interface 54, for obtaining the technological parameter of host computer, detects fault result for transmitting.According to technological parameter (spinning speed, tow fineness and warning fault size etc.) setting programming amplifier gain multiple.As required, also can not connect the technological parameter of host computer, enlargement factor is determined in self study.
Among the present embodiment, described control module 50 is also connected with an alarm output circuit 55, and it is for sending warning when detecting fault.Described warning output example is as being sound-producing device, light-emitting device.The present embodiment to set alarm output circuit, but is not limited in proper order, as required, also can establish a storer, keeps fault data.Among the present embodiment, as required, described control module 50 establishes an output interface 56, described alarm output circuit has a relay, described output interface 56 is relay output interface, by relay Output Interface Control relay, controls alarm output circuit.
Fig. 2 is read in examination, gain amplifier, the signal that it arrives for amplification detection.It can adopt more existing amplifying circuits, certainly also can adopt following amplifying circuit, and described gain amplifier comprises: difference instrument amplifier, and it comprises pre-amplifier and operational amplifier A 3; Pre-amplifier comprises forward operation amplifier A1 and reverse operational amplifier A 2; Digital resistance network switching, it is made up of electronic switch and precision resistance, and it controls pre-amplifier, namely selects suitable enlargement factor, to adapt to different denier count as received requirements by controller i/o pin control figure resistor network switch.
The signal exported by flow sensor is the continuous analog signal doing change with tow strip, this signal is admitted to rear class programmable gain amplifier and amplifies, the technological parameter that enlargement factor transmits the configuration software of host computer given according to RS485 network is determined, to adapt to the tow of different fiber number, signal after amplification is admitted to digital to analog converter and converts digital signal to, after digital signal carries out a series of process such as filtering, Fast Fourier Transform (FFT) in the controller, carry out judgement fault by software according to above-mentioned principle, then judged result is passed to host computer.
Described in upper, be only present pre-ferred embodiments, therefore scope of the invention process can not be limited according to this, the equivalence change namely done according to the scope of the claims of the present invention and description with modify, all should still belong in scope that the present invention contains.
Claims (5)
1. fabric fibre tow fault on-line measuring device, is characterized in that: it comprises:
One constant speed identical tension wire drive feeder, it comprises two groups of draw-off godets (10);
One spinning Network device (20), it is positioned between two groups of draw-off godets (10), to make fabric fibre tow constant speed identical tension along a draw-off godet (10), spinning Network device (20) and the motion of another draw-off godet (10) direction;
One pressure gas blowning installation (30), it is for blowing to spinning Network device (20); Described pressure gas blowning installation (30) comprises the gas pressure regulating valve (32) and a switch valve (33) that a pressure gas supply source (31), makes pressure gas blow to Network device with constant pressure, described pressure gas supply source (31) connects gas pressure regulating valve (32), described gas pressure regulating valve (32) connecting valve valve (33), described switch valve (33) coordinates spinning Network device (20);
One gas-dynamic detecting unit (40), the gas-dynamic data that it is blown to spinning Network device (20) for detecting pressure gas blowning installation (30); Described gas-dynamic detecting unit (40) is located between pressure gas blowning installation (30) and spinning Network device (20), and it comprises gas flow sensor (41) and gas pressure sensor (42); And
One control module (50), it connects gas-dynamic detecting unit (40), for obtaining gas-dynamic data, according to gas-dynamic Data Detection fault.
2. fabric fibre tow fault on-line measuring device according to claim 1, is characterized in that: described control module (50) is also connected with an alarm output circuit (55), and it is for sending warning when detecting fault.
3. fabric fibre tow fault on-line measuring device according to claim 1 and 2, it is characterized in that: described control module (50) comprises a controller (51) and a gain amplifier (52), described controller (51) connects gain amplifier (52), and described gain amplifier (52) connects gas-dynamic detecting unit (40).
4. fabric fibre tow fault on-line measuring device according to claim 3, it is characterized in that: described control module (50) also comprises a digital to analog converter (53), described digital to analog converter (53) is connected between controller (51) and gain amplifier (52).
5. fabric fibre tow fault on-line measuring device according to claim 3, it is characterized in that: described control module (50) has a transmission interface (54), this transmission interface (54) for obtain host computer technological parameter, detect fault result for transmitting, described control module (50) is according to technical arrangement plan gain amplifier (52) enlargement factor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210168697.4A CN103454181B (en) | 2012-05-28 | 2012-05-28 | Fabric fibre tow fault on-line measuring device |
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| CN201210168697.4A CN103454181B (en) | 2012-05-28 | 2012-05-28 | Fabric fibre tow fault on-line measuring device |
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| CN103454181A CN103454181A (en) | 2013-12-18 |
| CN103454181B true CN103454181B (en) | 2016-02-03 |
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| CN103789855B (en) * | 2013-09-25 | 2016-01-06 | 北京服装学院 | Utilize the melt spinning method that X-ray on-line synchronous detects |
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| DE3036697A1 (en) * | 1979-10-01 | 1981-04-30 | Agence Nationale De Valorisation De La Recherche (Anvar), Paris | METHOD AND DEVICE FOR DETERMINING THE IRREGULARITIES OF A RIBBON |
| JPS6377521A (en) * | 1986-09-17 | 1988-04-07 | Nok Corp | Gas analyzing instrument |
| CN1948603A (en) * | 2006-11-10 | 2007-04-18 | 苏州大学 | Method of identifying woven fabric defect |
| CN101724924A (en) * | 2009-11-16 | 2010-06-09 | 江苏盛虹化纤有限公司 | Polyester drawn textured yarn and production process thereof |
| CN101949066A (en) * | 2010-07-13 | 2011-01-19 | 江苏盛虹化纤有限公司 | Superfine draw texturing yarn and production process thereof |
| CN102071480A (en) * | 2011-01-27 | 2011-05-25 | 桐昆集团浙江恒盛化纤有限公司 | Method for producing POY of tight heavy fleece |
| CN202230000U (en) * | 2011-09-09 | 2012-05-23 | 乌斯特技术股份公司 | Device for testing micronaire value of cotton |
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2012
- 2012-05-28 CN CN201210168697.4A patent/CN103454181B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3036697A1 (en) * | 1979-10-01 | 1981-04-30 | Agence Nationale De Valorisation De La Recherche (Anvar), Paris | METHOD AND DEVICE FOR DETERMINING THE IRREGULARITIES OF A RIBBON |
| JPS6377521A (en) * | 1986-09-17 | 1988-04-07 | Nok Corp | Gas analyzing instrument |
| CN1948603A (en) * | 2006-11-10 | 2007-04-18 | 苏州大学 | Method of identifying woven fabric defect |
| CN101724924A (en) * | 2009-11-16 | 2010-06-09 | 江苏盛虹化纤有限公司 | Polyester drawn textured yarn and production process thereof |
| CN101949066A (en) * | 2010-07-13 | 2011-01-19 | 江苏盛虹化纤有限公司 | Superfine draw texturing yarn and production process thereof |
| CN102071480A (en) * | 2011-01-27 | 2011-05-25 | 桐昆集团浙江恒盛化纤有限公司 | Method for producing POY of tight heavy fleece |
| CN202230000U (en) * | 2011-09-09 | 2012-05-23 | 乌斯特技术股份公司 | Device for testing micronaire value of cotton |
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Effective date of registration: 20200623 Address after: 361000 Building 1, No. 358, Xilin Road, Tong'an District, Xiamen City, Fujian Province Patentee after: Xiamen Huacheng high tech Textile Co.,Ltd. Address before: 361000, Fujian Province, Xiamen Tong Xiang Ping Village Creek sound Village Road, No. 358 Patentee before: XIAMEN HUACHENG IND Co.,Ltd. |
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